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Evolution of vocabulary on scale-free and random networks

Author

Listed:
  • Kalampokis, Alkiviadis
  • Kosmidis, Kosmas
  • Argyrakis, Panos

Abstract

We examine the evolution of the vocabulary of a group of individuals (linguistic agents) on a scale-free network, using Monte Carlo simulations and assumptions from evolutionary game theory. It is known that when the agents are arranged in a two-dimensional lattice structure and interact by diffusion and encounter, then their final vocabulary size is the maximum possible. Knowing all available words is essential in order to increase the probability to “survive” by effective reproduction. On scale-free networks we find a different result. It is not necessary to learn the entire vocabulary available. Survival chances are increased by using the vocabulary of the “hubs” (nodes with high degree). The existence of the “hubs” in a scale-free network is the source of an additional important fitness generating mechanism.

Suggested Citation

  • Kalampokis, Alkiviadis & Kosmidis, Kosmas & Argyrakis, Panos, 2007. "Evolution of vocabulary on scale-free and random networks," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 379(2), pages 665-671.
    • Handle: RePEc:eee:phsmap:v:379:y:2007:i:2:p:665-671
    DOI: 10.1016/j.physa.2006.12.048
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